Common Industrial Cylinder Dimensions Standard High Pressure Cylinders Size 20 40 60 80 125 150 200 300 Volume (cf) 20 40 60 80 125 150 200 300 Tare Weight (lbs) 11 24 29 47 58 61 117 139 Height (inches) 14 17 23 32 43 47 51 55 Diameter (inches) 5 7 7 7 7 7 9 9 Water Capacity (liters) 3.5 7.8 10.3 15.4 21.6 23.4 43.2 49 6 Ft. 5 4 3 2 1 APPROXIMATELY
In a modern office, the most common form of enterprise infrastructure software is the company network suite. These programs define how the network functions, such as who has access to what and what sorts of data have priority over others. This is also one of the few systems that has a true physical representation.
Network Infrastructure This chapter describes the requirements of the network infrastructure needed to build an IP telephony system in an enterprise environment. Figure 3-1 illustrates the roles of the various devices that form the network infrastructure of a large-scale enterprise network, and Table 3-1 summarizes the features required to support each of these roles. IP telephony places strict requirements on IP packet loss, packet delay, and delay variation (or jitter).